package com.xujinchen.struct;

import java.util.Scanner;

public class IfDemo02 {
    public static void main(String[] args) {
        Scanner scanner =new Scanner(System.in);
        System.out.println("请输入成绩");
        int score=scanner.nextInt();
        if (score==100){
            System.out.println("恭喜满分");
        }else if (score<100 && score>=90){
            System.out.println("A");
        }else if (score<90 && score>=80){
            System.out.println("B");
        }else if (score<80 && score>=70){
            System.out.println("C");
        }else if (score<70 && score>=60){
            System.out.println("D");
        }else if (score<60 && score>=0){
            System.out.println("F");
        }else {
            System.out.println("成绩不合法");
        }
        scanner.close();
    }
}
